Air conditioning device



June 4, 1940. l. I. BQCK 2,203 590 AIR CONDITIONING DEVICE Filed June 29, 1939 3 Sheets-Sheet 1 lime 4, 1940.

|. BOCK AIR CONDITIONING DEVICE Filed Julie 29. 1959 3 Sheets-Sheet 2 June 4, 1940. N., 2,203,590

AIR CONDITIONING DEVICE Filed June 29, I939 3 Sheets-Sheet 3 Patented June 4, 1940 PATENT OFFICE AIR CONDITIONING DEVICE Irving I. Bock, Dallas, Tex. Application June 2c, 1939, Serial No, 281,963

'7 Claims.

This invention relates to air conditioning devices and more particularly to an improved means for discharging air into a room in a manner to prevent the creation of a draft from the air discharging means.

An object of this invention is to provide an improved outlet means which is adapted to be connected to an air duct and which is adapted to discharge air from the duct into a room, the device beingso constructed as to substantially diffuse the air from the duct so as to prevent the creation of a draft.

Another object of this invention is to provide a device of this kind which is adapted to be connected to an air duct and which, if desired, may be mounted entirely within the room and connected to the air duct by a tube, or if desired may be mounted exteriorly of the room and connected to the room by a short outlet connection so as to thereby eliminate the use of grills or the like as is at present the case to discharge air from an air conditioning duct into a room.-

A further object of this invention is to provide an improved outlet or discharge member which may be connected to an air duct and which in cludes means whereby the air entering the discharge member is given a swirling or rotary motion so that the air when discharged from the outlet member will be diffused laterally of the outlet in all directions rather than in only one direction as is the case at present where grills or the like are connected to an air duct.

To the above objectsand to others which may hereinafter appear, the invention consists of the novel construction, combination and arrange- Figure 2 is. a sectional view partly in elevation taken on the line 2-2 of Figure 1,

t Figure 3 is an enlarged sectional view taken on the line 33 of Figure 1,

Figure 4 is a transverse sectional View of a modification of this invention,

Figure 5 is a fragmentary sectional view taken on the line 5-5 of Figure 4,

Figure 6 is a transverse sectional view of another modification of this invention, l

t Figure '7 is a transverse sectional view of a further modification of this invention taken on the line 'l--l of Figure 8,

Figure 8 is a fragmentary plan view partly broken away and in section of the structure shown. in Figure '7, and

Figure 9 is a sectional 9-9 of Figure 7.

Referring to the drawings and first to Figures 1 to 3 inclusive, numeral l0 designates gen erally an air duct which in the present instance is rectangular in transverse section and is adapted to be connected to a source of air supply, either cool air or hot air. The duct Ill is supported in any suitable manner in spaced relation to a wall H which in the present instance is a ceiling and the ceiling H is provided with an opening I 3 within which an end of a tube I2 is mounted. The tube I2 is connected at one end to the bottom wall M of the duct Ill and the opposite end of the tube 12 extends through the ceiling II and discharges into anoutlet or dis-' charge member generally designated as i5.

The outlet member I5 is constructed in the shape of aninverted substantially dome-shaped body provided with a substantially cylindrical upper portion I6 having an outwardly extending flange l'l secured as by fastening devices 18 to the underside of the ceiling H. The lower portion of the outlet member I5 is provided with an inverted substantially frusto-conical member 19 connected to the cylindrical portion l6 by an arcuate portion 20. The apex of the tapered portion l 9 is provided with a reduced outlet opening 2| and the lower portion 19 is preferably provided with a reverted or outwardly flared discharge neck 22. l

The tube I 2 discharges as shown in Figure 2 into the outlet member I5 at one side of the axial center thereof and a baiile member 23 is disposed across the lower end of the tube l2 so that the air passing downwardly through the tube l2 will be directed towards the cylindrical wall N3 of the outlet member l5. In this manner the air passing downwardly through the tube 12 and into the outlet member ill will be given a circular or swirling movement so that when this air is then discharged through the flared neck 22, the air will be diffused or sprayed into the air in the room' and thus eliminate a draft.

The bafiie member 23 may be secured about three marginal edges thereof to the tube I2 which if desired maybe rectangular or square view taken on the line the tube I2 so that the air discharging from the tube I2 into the outlet member I5 will be given a rotary or swirling movement within the outlet'member I5.

In Figure 4 there is disclosed a slightly modified form of this invention wherein the outlet or discharge member I5a is connected directly to the bottom wall I la of the air duct Illa. The air duct Illa in the present instance is suspended from a ceiling or other support IIa by means of supporting straps 24 provided with outturned upper end portions 25 secured as byiastening members 26. The outlet member 'I5a is constructed similar to the outlet member I5 being provided with a cylindrical upper portion I 6a and an inverted substantially frusto-conical lower portion I9a which merges at its upper portion as at 20c into the lower end of a cylindrical portion IIia. A reduced outlet 2Ia is provided in the lower end or apexof the tapered portion Illa and the outlet member I5a is provided with an outwardly flared neck 22a. The bottom wall I 4a is provided with an opening 21 and a baflle 23a is positioned within the opening 21 extending partly upwardly into the interior of the duct Illa and partly downwardly into the interior of the outlet member Iiia. The baiile 23a is supported in an inclined position by means of a bracket 28 which is secured to the bottom wall Ma and to one face of the baflie 23a.

The baffle 23a is adapted-to cause air to be deflected from the duct Illa downwardly into the outlet member I5a, the air being deflected on an angle to the horizontal. The opening 21 through the bottom wall Ma is positioned at one side of the axial center of the air diffusing member I50,

' so that the air entering the diffusing member Ifia from the duct Ifia will not flow directly to the discharge opening 2Ia.

In Figure 6 there is disclosed a further modiflcation of this invention wherein the air duct Iilb is positioned above the wall or ceiling I Ib and the discharge member Ifib is secured to the bottom wall I41) of the duct IIlb and is likewise positioned above the ceiling or wall IIb The outlet member I 5b has a marginal flange I'Ib secured as by fastening members I8b to the under side of the bottom wall Mb and the wall I tb is provide-d with an opening 21b through which air from the duct IIlb is adapted'to pass into the outlet member I 5b. A baffle member 23b similar to the baiile member 23a is supported in the opening 21b and projects partly into the interior of the duct I b and partly downwardly into the interior of the outlet member I51) at one side of the axial center thereof.

The lower portion of the outlet member IE2) is provided with a cylindrical neck 29 extending through the wall I61) and a ring 30 which is substantially U-shaped in transverse section is secured to the lower end of the neck 29 by fasten-' ing devices 3|. The ring 30 is disposed with the parallel legs thereof extending upwardly so that the bight 32 will forman outwardly flared air diffusing means to assist in the diffusing of the air passing through the interior of the discharge neck 29.

In Figures '7 to 9 inclusive there is disclosed a further modification of this invention wherein the duct I00 is disposed above the ceiling or wall Me. In this form, the air diffusing or outlet member I50 is disposedat one side. of the duct vnecting tube I20.

Illc. The outlet member 'I5c is connected to the side wall 33 of the duct IIlc by means of a con- Figure 8 is disposed substantially tangential to the circular or cylindrical wall I60 and an upper wall 34 is secured to the upper end of the cylindrical portion IIic. The discharge member Ic is provided with a cylindrical discharge neck 29c and a ring 380 which is substantially U-shaped in transverse section and disposed with the free legs thereof extending upwardly is secured as by fastening members 3Ic to the lower end of the cylindrical discharge portion 2.90 below the wall No.

A bafiie 35 is secured as shown in Figures 7 and 8 to the side or vertical wall 33 or the duct H in a position to deflect a portion of the air passing through the duct IDc into the connecting tube I2c. With a structure of the type disclosed in Figures 6 and 7, the air duct and the air diffusing member are positioned within the wall and are concealed, the only portion being exposed being the difiusing outlet which is provided with a rounded rim as shown at 3B and 390 in Figures 6 and 7 respectively.

In the use of this air diifusing structure where the air duct is positioned within a wall the structure shown in Figure 1 may be used or if desired the structure shown in Figures 6 and 7 may be used, Where conditions are such that the diffusing member cannot be positioned either directly below the air duct within the wall space or at one side of the air duct as shown in Figures 6 and '7, the diffusing membermay be positioned within the room as shown in Figure 1-. The air from the duct It will pass through the interior of the tube I2 and be deflected by means of baflle or deflecting member 23 on an angle to the horizontal and at one side of the axial center of the diffusing member I5. The rotating air in the diffusing member I5 will be discharged in a rotary motion through the flared discharge neck 22 so that the discharged air will be diffused in all directions laterally of the discharge neck 22. In this manner the cold or hot air which is dis- The tube I as shown in charged from the duct II] will not cause a draft adjacent the outlet member as is the case where a grill or non-diffusing discharge member is provided. v

With a structure of this kind, a number of diffusing members may be positioned in a wall or ceiling and where the outlet of the diffusing member extends through the wall, the outlet will be relatively small and will not occupy as great a space as is the case where a grill is used to cover up the outlet of an air duct.

(What I claim is: l

1. In an air duct an inverted dome-shaped outlet member provided with a reduced axial outlet opening, and means for discharging air from'said duct tangentially into said member whereby to effect a circular movement of air in said member.

2. In an air duct an inverted dome-shaped outlet member provided with a reduced axial outlet opening, and means for discharging air from said duct tangentially into said member whereby to effect a circular movement of air in said said outlet member whereby to effect a swirling movement of air in said member.

4. In an air duct an inverted dome-shaped outlet member provided with an axial outlet opening, means securing said member to a wall of said duct, said duct having an opening in a wall thereof at one side of the axial center of said member, and a baffle plate secured to said wall of said duct and disposed partly in said duct and partly in said member whereby to effeet a swirling movement of air in said member.

5. In an air duct an inverted dome-shaped outlet member provided with an axial outlet opening, a flared discharge member extending from said opening, a tube connecting said outlet member with said duct, said tube communicating with said outlet member at one side of the axial center thereof and a bafile in said tube inclined to the longitudinal axis thereof, said bafile being disposed adjacent said outlet member. v

6. In an air duct a dome-shaped outlet member, a tube communicating said member with said duct, and a battle at one end of said tube inclined to the length thereof, said tube being connected to saidmember in a manner to effect a swirling movement of air in said member.

7. In an air duct a dome-shaped outlet memher, a tube disposed substantially tangentially of said member, and a baffle inclined to the length of said tube and extending interiorly of said duct.

IRVING I. BOCK. 

